package com.wmcom.wm.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;

import com.wmcom.wm.common.R;
import com.wmcom.wm.entity.Employee;
import com.wmcom.wm.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Resource
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        // http://localhost:9099/backend/page/login/login.html
        //http://localhost:9099/front/page/login.html
        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if(emp == null){
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
    /**
     *显示所以员工
     *
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize,String name){
        Page<Employee> p = new Page<>(page,pageSize);
        LambdaQueryWrapper<Employee>q=new LambdaQueryWrapper<>();
         if (name != null){
             q.like(Employee::getName,name);
         }
         q.orderByDesc(Employee::getUpdateTime);
        employeeService.page(p, q);
        return R.success(p);
    }
    /**
     *添加员工
     */
    @PostMapping
    public R<String> insertOne(@RequestBody Employee employee,HttpServletRequest request){
        log.info("员工",employee.toString());
           //初始化密码并进行加密
            employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
           // 添加用户注册时间
        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //employee.setUpdateUser((Long) request.getSession().getAttribute("employee"));
        //employee.setCreateUser((Long) request.getSession().getAttribute("employee"));
        employeeService.save(employee);
           return R.success("新增员工成功！");
    }
    /**
     *管理员禁用员工账号
     */
    @PutMapping
    public R<String>updateStatus(@RequestBody Employee empty,HttpServletRequest request){
    //       修改员工的状态
    //      empty.setUpdateTime(LocalDateTime.now());
    //      empty.setUpdateUser((Long) request.getSession().getAttribute("employee"));
        if ("管理员".equals(empty.getName())) {
            return R.error("没有权限修改管理员！");
}
           employeeService.updateById(empty);
         return R.success("员工信息修改成功！");
    }
    /**
     *根据id查询员工信息
     */
    @GetMapping("/{id}")
    public R<Employee>getById(@PathVariable("id") Long id){
         log.info("查询员工信息");
        Employee employee = employeeService.getById(id);
        return R.success(employee);
    }
}
